Zebedee,
It states clearly that a healthy body produces ethanol in measurable quantities
I think you have misunderstood the previous posts regarding endogenous ethanol production - the human body can not synthesize the enzymes required to metabolize sugars in to ethanol, this can only be done by yeasts and similar micro-organisms. Therefore
all ethanol found "naturally" in the body is produced by candida etc in the gut.
I realise if you do not have a scientific background this may be difficult to grasp.
May I also suggest that a pilot suffering from candida over-growth is as great a liability as a pilot who knowingly consumes alcohol, if not more so because he has no control over the amount of alcohol in his system?